Possible bug in handling newline element in blockqoute

[jodator]

📝 Provide detailed reproduction steps (if any)

Found here: #7859

Use HtmlDataProcessor.toView()  with (notice the \n after </pre>:

"<blockquote>\n<p>Example 1:</p>\n<pre><code>code 1</code></pre>\n<p>Example 2:</p>\n<pre><code>code 2</code></pre>\n</blockquote>\n"

This is converted to the view as (notice the </pre> </blockquote>)

"<blockquote><p>Example 1:</p><pre><code>code 1</code></pre><p>Example 2:</p><pre><code>code 2</code></pre> </blockquote>"

It is represented in the view as Text element with " " (space):

✔️ Expected result

The " " should not be inserted here.

📃 Other details

I'd suspect recent changes in handling paragraphable elements. But that's a wild guess.

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[niegowski]

I'd suspect recent changes in handling paragraphable elements. But that's a wild guess.

This issue is with us for many iterations, example https://ckeditor.com/docs/ckeditor5/16.0.0/features/code-blocks.html is also behaving the same way.